You've observed the following returns on Blast It Corporation's stock over the past five years: 19 percent, -23 percent, 31 percent, 18 percent, and -7 percent, respectively. What was the variance of the returns over this period?

must be entered as decimals rather than percentages, with 4 digits to the right of the decimal point.

**I'm seeing contradicting answers on here, some are saying 438.8% and some are saying .04838 and I don't know which one is correct, if any**